So excited to here about your theme! We are currently extending our house with a similar theme and colour style. We have gone with 'Solver Parchment' in our kitchen (and most of the new section actually), it is not a yellow or cream colour, more of a beige undertone. Lots of warmth and not too strong. Quite similar to half strength Dulux Hog Bristle. (We don't have kitchen cabinets just yet). In the master bedroom we have gone with 'Taubmans Morning Fog ' which is a lovely duck eggy blue colour, very calming. Could also work with your blue accents. Both match with my Laura Ashley wallpaper feature walls very nicely (Laura Ashley Josette in Duck Egg and Sable). Ceiling, cornice, archs and skirts etc all in 'Wattyl Magic White'. Nice and fresh. See pics - please excuse the samples messiness, they have been rolling around in my glove box for a while. Look forward to hearing what you go with and seeing a pic.

Taubmans chilly water (more green) or misty rain (more blue). i'm sure there was a design dilemma post from a while back that gave the Aussie paint answer to this question. Hopefully someone who knows will see this and link it.

Thanks @mcmahonandnerlich for your considered response! Yours is about the only positive feedback I've had for Vivid White!! I love the cleanness of the test areas we've done but am a bit nervous that we might find it too clinical. Also a bit concerned our bedroom may dazzle our socks off as it will get afternoon sun in winter! Can you allay my fears?! And are you at all familiar with Snowy Mountains Quarter? It has a smidge of black and ochre in it, so is a tad warmer but not as warm as Natural White. Finally, do I need to be worried about the impact of our charcoal polished concrete and charcoal carpet on the final paint choice? If the paint has any black in it will the dark floors bring it out in the paint? Sorry to bombard you but your comments were so apt ... Thanks in advance!

Just guesses,,,,